# CVE-2020-15189: Remote Code Execution in SOY CMS

> Attackers can achieve remote code execution via unrestricted file upload in SOY CMS, exploiting insecure elFinder configuration.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Sep 2020
- **Updated:** 4 Aug 2024

## What is CVE-2020-15189?

CVE-2020-15189 is a medium-severity vulnerability in inunosinsi soycms, published on 18 Sep 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

SOY CMS 3.0.2 and earlier is affected by Remote Code Execution (RCE) using Unrestricted File Upload. Cross-Site Scripting(XSS) vulnerability that was used in CVE-2020-15183 can be used to increase impact by redirecting the administrator to access a specially crafted page. This vulnerability is caused by insecure configuration in elFinder. This is fixed in version 3.0.2.328.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2020-15189?

It affects 1 product.


Products: Brassica Soy Cms.

## How do I fix CVE-2020-15189?

No fix has been published for CVE-2020-15189 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15189 being exploited?

There is no known exploitation of CVE-2020-15189 in the wild and no public exploit code.

## Other vulnerabilities in inunosinsi soycms

- [CVE-2020-15188](https://insights.sbomify.com/CVE-2020-15188/): Unauthenticated Remote Code Execution in SOY CMS (critical 10.0)
- [CVE-2019-11376](https://insights.sbomify.com/CVE-2019-11376/): Code injection in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15189 and fix it if it is affected.

What it is: CVE-2020-15189 is a medium-severity vulnerability in inunosinsi soycms, published on 18 Sep 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-15189 in the wild and no public exploit code.

Affected product: inunosinsi soycms. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-15189/ (Markdown: https://insights.sbomify.com/CVE-2020-15189/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15189
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15189
- OSV: https://osv.dev/vulnerability/CVE-2020-15189

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15189/
Summaries are generated and may contain mistakes; the official description above is the record.